straggler

n. 1. One who straggles, or departs from the direct or proper course, or from the company to which he belongs; one who falls behind the rest; one who rambles without any settled direction. [ 1913 Webster ]

2. A roving vagabond. Shak. [ 1913 Webster ]

3. Something that shoots, or spreads out, beyond the rest, or too far; an exuberant growth. [ 1913 Webster ]

Let thy hand supply the pruning knife,
And crop luxuriant stragglers. Dryden. [ 1913 Webster ]

4. Something that stands alone or by itself. [ 1913 Webster ]